Frequently Asked Questions

Here are a list of commonly asked questions and answers. If you have any questions which are not on this list, please talk to us on the Mailing Lists.

We welcome contributions and this entire website is in the GitHub repository you can send a pull request, so please join in and help us make the documentation better!

General Questions

General questions about Camel

Can I get commercial support?
How can I get help?
How can I get the source code?
How does Camel compare to Mule?
How does Camel compare to ServiceMix?
How does Camel compare to ServiceMix EIP?
How does Camel compare to Synapse?
How does Camel work?
How does Camel work with ActiveMQ?
How does Camel work with ServiceMix?
How does the Camel API compare to?
How does the website work?
How do I become a committer?
How do I compile the code?
How do I edit the website?
How do I run Camel using Java WebStart?
If I use ServiceMix when should I use Camel?
Is Camel an ESB?
Is Camel IoC friendly?
Running Camel standalone
What are the dependencies?
What is a router?
What is Camel?
What is the license?
What jars do I need?
What languages are supported?
What platforms are supported?
Why the name Camel?

Using Camel Questions

Questions on using Apache Camel

Classloader issue of servicemix-camel component
How do I specify which method to use when using beans in routes?
How can I create a custom component or endpoint?
How can I get the remote connection IP address from the camel-cxf consumer ?
How can I stop a route from a route?
How can webservice clients see remote faults with stacktraces when using camel-cxf?
How does Camel look up beans and endpoints?
How do I add a component?
How do I change the logging?
How do I configure endpoints?
How do I configure password options on Camel endpoints without the value being encoded?
How do I configure the default maximum cache size for ProducerCache or ProducerTemplate?
How do I configure the maximum endpoint cache size for CamelContext?
How do I debug my route?
How do I disable JMX?
How do I enable streams when debug logging messages in Camel?
How do I handle failures when consuming for example from a FTP server?
How do I import rests from other XML files?
How do I import routes from other XML files?
How do I let Jetty match wildcards?
How do I name my routes?
How do I restart CamelContext?
How do I retrieve the thrown Exception during processing an Exchange?
How do I retry failed messages forever?
How do I retry processing a message from a certain point back or an entire route?
How do I reuse the ContextTestSupport class in my unit tests?
How do I run ActiveMQ and Camel in JBoss?
How do I set the max chars when debug logging messages in Camel?
How do I use a big (uber) JAR?
How do I use Camel inside ServiceMix?
How do I use Spring Property Placeholder with Camel XML?
How do I use URIs with parameters in XML?
How do I write a custom Processor which sends multiple messages?
How should I invoke my POJOs or Spring Services?
How should I package applications using Camel and ActiveMQ?
How to avoid importing bunch of cxf packages when start up the camel-cxf endpoint from OSGi platform?
How to avoid sending some or all message headers?
How to create executable JAR for camel-main project?
How to define a static Camel converter method in Scala?
How to remove the http protocol headers in the camel message?
How to send the same message to multiple endpoints?
How to switch the CXF consumer between HTTP and HTTPS without touching the Spring configuration?
How to use a dynamic URI in to()?
How to use extra Camel componets in servicemix-camel?
Is there an IDE?
Should I deploy Camel inside the ActiveMQ broker or in another application?
Using camel-core-tests.jar
Using getIn or getOut methods on Exchange
Why can’t I use + sign in my password?
Why can I not use when or otherwise in a Java Camel route?
Why does FTP component not download any files?
Why does my file consumer not pick up the file, and how do I let the file consumer use the Camel error handler?
Why does useOriginalMessage with error handler not work as expected?
Why do my message lose its headers during routing?
Why is my message body empty?
Why is my processor not showing up in JConsole?
Why is the exception null when I use onException?
Why use multiple CamelContext?

Logging Questions

Questions on logging output from Camel to a console, using the Log endpoint or JDK 1.4 logging or Log4j etc

How do I enable debug logging?
How do I use Java 1.4 logging?
How do I use log4j?

Camel Endpoint Questions

Questions on using the various Camel Components and Endpoint implementations

How do I invoke Camel routes from JBI?
How Do I Make My JMS Endpoint Transactional?
How do I set the MEP when interacting with JBI?
How do the direct, event, seda and vm endpoints compare?
How do the Timer and Quartz endpoints compare?

Component Questions

Questions on using specific components

JMS Questions

Questions on using the JMS endpoints in Camel

Why does my JMS route only consume one message at once?

Common Problems

Common Problems that people have when riding the Camel

Exception - BeanDefinitionStoreException
Exception - javax.naming.NoInitialContextException
Exception - org.apache.camel.NoSuchEndpointException
Exception - org.xml.sax.SAXParseException
Memory leak when adding and removing routes at runtime
Why do Camel throw so many NoClassDefFoundException on startup?
Why does Camel use too many threads with ProducerTemplate?
Why does maven not download dependencies?